nozzle



March 31 1936. R PARAD|$E Re. 19,913

NOZZLE Original Fil eg ikug. 5. 1931 Invenfor,

Raymond P Paradise, 5

7 mm mm.

Attorneys.

Reissued Mar. 31, 1936 NOZZLE Raymond P. Paradise, Indianapolis, Ind.

- Original No. 1,922,259, dated August 15, 1933,

Serial No. 555,272, August 5, 1931. -Applicatlon for reissue June 19, 1935, Serial No. 27,422

4 Claims.

This invention relates to the art of nozzles or jets and particularly to the opening therethrough. It is a primary purpose of my invention to pro-- vide an orifice through whicha flow of liquids .5. is had to break up thefiow whereby there is not a solid stream discharge to have the discharge fiow in the form of small particles and not in a solid column.

It is a primary object of my invention to provide an orifice fitting which may be made very cheaply and whichis of such conformation that the orifice therethrough is practically self cleaning and not subject to being clogged in ordinary service.

These and other objects will become apparent in the following description of the invention as illustrated by the accompanying drawing, in

which Fig. 1 is a view in perspective ofa short length of irrigating pipe line to which my invention is applied;

Fig. 2, a section through the pipe line, on the line 2-2 in Fig.- 1;

Fig. 3, a, similar section showing a modified form of orifice fitting; v

Fig. 4, a side elevation of an orifice cup embodying my invention Fig. 5, a top plan view of the cup; Fig. 6, a vertical section through the cup on the line 66 inFig. 4;

Fig. 7, a top plan view of a lawn sprinkler head to which the invention is applied;

Fig. 8, a section on the line 88 in Fig. 7.

I Like characters of reference indicate like parts 5 throughout the several views in the drawing.

Referring first to Figs. 1-6, I form a cup I5 to have a bottom bulged outwardly to protrude convexly. Through the bottom, I punch or broach a hole lGto have a plurality of straight sides 40 whereby the sides meet to form angles spaced- The cup I5 is pressed into openings in the pipe 50 I! a few thousandths of an inch less in diameter than the external diameter of the cup I5 to have the cup retained by a pressed fit. It is to be noted that the convex bottom of the cup is positioned toward the oncoming fluid. Where it is not feasible or advisable to press the cup directly into the pipe outlet, a screw fitting I8 is provided into which the cup I5 is pressed, Fig. 3, and the fitting I8 is screw-threadedly entered in the pipe l1.

The cup with its orifice may, ,of,course, be 5 formed integrally in the wall of the fluid conductor as, for example, in Flgs.'7 and 8, where thecup I9 is pressed directly into the wall of the sprinkler head 20 to form a convex button projecting to within the head with the orifice cut 10 therethrough.

By positioning the orifice cup to have its convex end presented toward the oncoming fluid, and by forming the noncircular orifice in this con- I vex end, parts of the orifice extend around the 15 end away from the center. By reason of this 7 structure, all of the fluid in a given transverse bent and separated to break the solid light stream up into individual smaller streams.- Also, the fiow is restricted by the shape of the hole itself 30 to further the breaking up of the stream.

In irrigation work, water discharging from the orifice as here shown and described breaks up into minute particles, yet the water is thrown a considerable distance, in fact, as great a distance as is obtained by the heretofore commonly employed circular orifice, with the result that the ground'is not washed nor compacted to dry out with a caked surface.

A circular orifice of small diameter clogs very 40 easily should particles of dirt, rust, or thelike be in the fluid. The orifice shaped as herein described does not clog readily for the reason that at least one corner is left uncovered by the solid particle with the result that some fluid flows atherepast through the orifice 'and' tends to wash the particle to one side. Also, by reason of the convex bottom of the cup being directly toward the oncoming fiow, the solid particles tend to slide around the bottom away from the orifice.

While I have here shown and described my invention in the best form as now known to me, it

is obvious that structural changes may be made without departing from the spirit oi the inven-. tion, and I, therefore, do not desire to be limited K6 to that precise form beyond the limitations oi the following claims.

l i t 1. An irrigating pipe line side outlet nomle comprising a cup shaped member having a convex inner end presented toward water in the line and an outlet orifice centrally locatedin said end, through which orifice the water may escape from the line at right anglesto the new through the line said orifice having three sides intersecting in a plane outwardly removed from the innermost part of said end. a

2. A liquid discharge nozzle includinga cupshaped member open across the outlet end, convexly protruding at the inlet end, and havinga triangular orifice in the convex inlet end centrally' comprising a cup shaped member having a convex innerendpresented towardwaterin theline and an outlet orifice centrally located in said end through which orifice the water may escape from most part 01' said end, and a cylindrical body supporting said member therein to have said end spaced outwardly slightly from the inlet end of the body. I

4. A liquid discharge nozzle including a cupshaped member open across one end and convexly protruding at the other end and having a triangular orifice in the convex end centrally located thereof. v

- RAYMOND P. PARADISE. 

